For me, the lack of incremental search with C-s/C-r is the big one — would love to jump around inside any text field using C-s pattern C-s C-s … CR (especially ergonomic if you use Caps as Ctrl). That’s a bit different than navigating with Cmd-F, which in most apps is (i) not incremental and (ii) often throws the cursor out of the text field.

It is also worth noting that macOS also uses Cmd+Opt as its Meta key (so Cmd-Opt-F and Cmd-Opt-B are the word-wise motions).